The most effective risk management strategy for a manufacturer experiencing regular fluctuations in the price of electrical power, which impacts the bottom line, would be to use a forward contract for bulk power purchases. This strategy allows the manufacturer to lock in power prices for a future period, thus reducing the risk associated with price volatility and providing more predictable cost planning.

Risk management strategies in operations and finance, as discussed in business management and internal auditing literature, which advocate using financial instruments like forward contracts to hedge against price fluctuations.